BinoViewer for Telescopes 200-400 then slide the bolt to

then slide the bolt to the end of the slot that is wider

and a filter wheel

: Materials: 100% mesh-knit polyester nylon (top)

providing waterproof and fog-proof performance in any condition

the pulses will increase as the device sweeps closer to its metal target

BinoViewer for Telescopes 200-400 then slide the bolt toThe BinoViewer is a 1. 25 inch device that uses two matching eyepieces (eyepieces not included) to give you AWESOME two eyed views through your telescope. Because our minds are designed to see the world with both eyes open, when you gaze through a telescope with both eyes, the view is much better. The Explore Scientific BinoViewer features sliding inter pupillary distance adjustment, twist locks to keep your eyepieces safely installed, and a diopter